Shuttle for circular looms



y 1940- F. s. HARDY 2,206,952

SHUTTLE FOR CIRCULAR LOOMS Filed Oct. 11, 1938 Patented July 9, 1940 Frederick suangaray; stoma:matinee;'

England, assignor'to Celanese Corporation of America, a corporationof DeIaWare}-- 1 3 Claims.

This invention relates to the shuttles of a circular loom of the kind in which the weft is carried by a flat spool or cheese held stationary in the shuttle body. The invention is particularly concerned with means for removably securing the weft package in position.

According to the invention, a weft package supporting plate in the shuttle, so that the utmost space is left available for the thickness of the package in order to accommodate'the maximum amount of weft in the relatively thin shuttle that the restricted shed opening in a circular loom permits, it being understood that the supporting plate lies as closely as possible to one sheet of warps and that the thickness of the package is such that at the side of the shuttle remote fromthe supporting plate the package lies just clear of the other sheet of warps.

The invention will now be described in greater detail with reference to the accompanying drawing showing a package mounting arrangement having three catches for engaging the flange of the package, and spring means independent of the foremost catch to urge the flange behind the rearmost catches.

In the drawing Fig. 1 is a front elevation of a shuttle showing the weft package mounted in position;

Fig. 2 is a part sectional plan taken on the line 2-2-of Fig. 1;

Fig. 3 is a part sectional plan taken onthe line 3-3 of Fig. l, but on a larger scale; and

Fig. 4 shows the complete shuttle to a smaller scale.

The shuttle comprises a body I carrying flanged rollers 2 at two different levels, and a roller 3 freely mounted on a substantially vertical axis, the rollers 2 and 3 serving for the positioning and driving of the shuttle. Below the body I is a plate terminating in a beat-up edge 4, provided with alternative Weft eyes 5, 6. Above the body I are plates 7, 8, shaped so as to permit the smooth passage of the shuttle through Application October 11, 19j3s ,sei-ia1]if6." 1234,33 Great Britain shuttle, its flange I2 is of the upper part pin I6. Removal and replacement of the pack-- the shed, and the forward part of the shuttle carries a warp feeler device 9. The plates 1, 8 are connected by plate members I0, II, against which the flange I2 of the weft package I3 is to rest, as shown in Fig. 2.

The rear plate I I has a pair of hooks I4 formed to engage the flange I2 at two points lying respectively above and below the axis of the package. The forward plate Il! is bent at right angles so as to impart rigidity to the whole struc- 10 ture above the plate 1, and the portion I5 of the plate Ill carries a pin I6 behind which the flange I2 can fit snugly. The pin I6 is at the level of the axis of the package. In addition, the member if! has riveted to it at'points Ila 15 flat spring I8, the freeends of whichare bent as shown at I9, to receive pins 20, 2| passed through slots 22 in the plate ID. The pins are soldered to the springlB, and are urged by the spring towards the hooks I I. 20

When a weft package is to beinserted in the pressed against the pins 2%), 2i and behind the pin I6 until its right hand edge can rest against the plate II. The spring I8 then urges the flange I2 behindthe hooks I 3, the hooks I land pin I6 then serving as catches to prevent the flangefrom being lifted away from the plates I0, II. The pin I6 is long enough to maintain contact with the flange after the flange has been pushed rearward behind the hooks I4.

The pins 20, 2| are bent at right angles, as shown at 23 in Fig. 3, so as to maintain between the spring i8 and the plate ID a space just sufiicient for the passage of the flange I2 into engagement with the pins 20, 2|, andto prevent the spring and the pins from moving away from the plate far enough to miss engaging the flange. The curve formed by bendingthe pins into the portion 23 offers no obstruction to the passage of the warps'over that side of the shuttle, and the flange I2 being held close against the plates II), II, substantially the whole thickness of the I shuttle from front to back is available for weft 24 on the package I3. 45

To remove a weft package, the flange I2 is pushed against the spring I8 until its rear edge clears the hooks I4; the flange is then lifted away from the plate II and drawn clear of the age can thus be effected very quickly, and yet the package is held firmly in place in the shuttles. Having described my invention, what I desire to secure by Letters Patent is:

l. A circular loom shuttle comprising at least three catches behind which the flange of a removable weft spool may he slid, two of said catches being disposed to engage on one side of a vertical line through the shuttle and one catch engaging on the other side of said vertical line so that said catches make engagement at points widely spaced round the periphery of the flange, and spring means adapted to engage the flange and urge the flange firmly behind the two catches on one side of said vertical line.

2. A circular loom shuttle comprising at least three catches behind which the flange of a removable weft spool may he slid, two of said catches being disposed to engage on one side of a and spring means adapted to engage the flange and urge the flange firmly behind the two catches on one side of said vertical line, said spring means being independent of said catches.

3. A circular loom shuttle comprising at least three catches behind which the flange of a removable weft spool maybe slid, the catches making engagement at points widely spaced round the periphery of the flange, two of said catches being disposed to engage the rear edge of the flange and one catch to engage the front edge of the flange, and spring means adapted to engage the flange and urge it behind the two rearmost catches so as to keep the flange firmly behind the catches, said spring means making contact with two points on the periphery of the flange.

FREDERICK SU'I'ION HARDY. 

